Conditions for Setting the DTC
WARNING: This page is about a different car, the 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 Chevrolet TrailBlazer, and 2004 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0756 sets if both of the following conditions occur:
Condition 1
- The PCM commands first gear for 2 seconds.
- The estimated gear ratio is 0 to 1.4.
- All conditions are met for 1 second.
Condition 2
- The PCM commands second gear for 1 second.
- The estimated gear ratio is 0.9 to 1.2.
- All conditions are met for 2 seconds.